Yamal-402
Russian communications satellite
From Wikipedia, the free encyclopedia
Yamal-402 (Russian: Ямал-402) is a Russian geostationary communications satellite. It was launched on 8 December 2012, 13:13:43 UTC from Site 200/39 at the Baikonur Cosmodrome in Kazakhstan.[1] It was built by Thales Alenia Space, and is based on the Spacebus-4000C3 satellite bus. It is equipped with 46 Ku-band) transponders.[2] It has a design life of 15 years, but reducing to 11 years expected after launch partial failure.[3]
| Names | Ямал-402 Yamal-400 KA-2 |
|---|---|
| Mission type | Communications |
| Operator | Gazprom Space Systems |
| COSPAR ID | 2012-070A |
| SATCAT no. | 39022 |
| Website | https://www.gazprom-spacesystems.ru |
| Mission duration | 15 years (planned before launch) 11 years (planned after launch) 13 years, 5 months and 22 days (in progress) |
| Spacecraft properties | |
| Spacecraft | Yamal-402 |
| Spacecraft type | Yamal-400 |
| Bus | Spacebus-4000C3 |
| Manufacturer | Thales Alenia Space |
| Launch mass | 5,250 kg (11,570 lb) |
| Power | 10.8 kW |
| Start of mission | |
| Launch date | 8 December 2012, 13:13:43 UTC |
| Rocket | Proton-M / Briz-M |
| Launch site | Baikonur, Site 200/39 |
| Contractor | Khrunichev State Research and Production Space Center |
| Entered service | February 2013 |
| Orbital parameters | |
| Reference system | Geocentric orbit |
| Regime | Geostationary orbit |
| Longitude | 55° East |
| Transponders | |
| Band | 46 Ku-band) |
| Coverage area | Russia |
History
In February 2009, Gazprom Space Systems announced a contract with Thales Alenia Space for two satellites: Yamal-401 and Yamal-402.[3] This was the first time a foreign supplier would build a satellite for the domestic Russian market. After much lobby from Russian industry, the contract for the bus and integration of Yamal-401 was cancelled and awarded to ISS Reshetnev, but Thales was allowed to keep the payload supply.[3][4][5]
Launch problem
On 6 November 2012, the satellite arrives at the launch site of Baikonur.[6] On 8 December 2012, at 13:13:43 UTC, a Proton-M / Briz-M launches Yamal-402 to a geostationary transfer orbit (GTO).[7] The same day, Khrunichev State Research and Production Space Center and International Launch Services (ILS) reported an anomaly during the launch in which the Briz-M stage failed 4 minutes before scheduled shut down on its fourth burn.[8][9]
On 10 December 2012, specialists from Thales Alenia Space carried out maneuvers to bring the satellite into its designated orbit after a premature separation from Briz-M.[10][11] On 15 December 2012, Yamal-402 was taken to its planned geostationary orbit at the altitude of 36,000 km following a series of four adjustment operations.[12]
Mission
The satellite lost 4 years of fuel to compensate for lower than expected orbit injection.[3]
See also
- Yamal – Communication satellite family operated by Gazprom Space Systems
- Gazprom Space Systems – Satellite communication division of the Russian oil giant Gazprom
- Spacebus (satellite bus) – Satellite platform on which Yamal-402 is based
- Thales Alenia Space – Satellite bus and payload designer and manufacturer
